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The classical music of Azerbaijan is called mugam (more accurately spelled muğam), and is usually a suite with poetry and instrumental interludes. The sung poetry sometimes includes tahrir segments, which use a form of throat singing similar to yodelling. The poetry is typically about divine love and is most often linked to Sufi Islam.

In contrast to the mugam traditions of Central Asian countries, Azeri mugam is more free-form and less rigid; it is often compared to the improvised field of jazz.[2]

UNESCO proclaimed the Azerbaijani mugam tradition a Masterpiece of the Oral and Intangible Heritage of Humanity on November 7, 2003.

[edit] Musical instruments The sung poetry sometimes includes tahrir segments, which use a form of throat singing similar to yodelling. The poetry is typically about divine love and is most often linked to Sufi Islam.
   
Instruments used in traditional Azeri music include the stringed instruments tar (skin faced lute), the kamancha (skin faced spike fiddle), the oud, originally barbat, and the saz (long necked lute); the double-reed wind instrument balaban, the frame drum ghaval, the cylindrical double faced drum naghara (davul), and the goshe nagara (naqareh) (pair of small kettle drums). Other instruments include the garmon (small accordion), tutek (whistle flute), daf (frame drum) and nagara (drum) (barrel drum).